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São Tomé

$1,709+ Cheap flights from Dulles Intl (IAD) to São Tomé (TMS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TMS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Dulles Intl to São Tomé

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to São Tomé (TMS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$1,709
(TAP AIR PORTUGAL)
Provider with most accurate pricing for Washington, D.C. (WAS)-Sao Tome Is flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sao Tome Is flights.
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From Washington, D.C. Dulles Intl to Sao Tome Is
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Find flight deals from Dulles Intl to São Tomé

Cheapest flights from Dulles Intl to São Tomé
Explore the most affordable flight options available from Dulles Intl to São Tomé. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Wed 12/108:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 10/28$1,709

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to São Tomé that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to São Tomé that are best for you.

Fly from

Dulles Intl

Fly to

São Tomé

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 12/6

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Wed 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,709

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Dulles Intl to São Tomé

Have a flexible travel schedule? Discover the best time to fly to São Tomé from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to São Tomé. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to São Tomé from Washington, D.C. Dulles Intl?

    Sao Tome Is (TMS) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to São Tomé. You should not have trouble finding flights to Sao Tome Is from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the São Tomé airport from Washington, D.C. Dulles Intl. It is only a 3.1 mi journey from Sao Tome Is (TMS) to São Tomé’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to São Tomé?

    TAP AIR PORTUGAL can get you from Washington, D.C. Dulles Intl Airport to São Tomé in just under 19h 35m. Your travel time can differ by up to . The distance from Washington, D.C. Dulles Intl Airport to São Tomé is about 5884 mi.

  • Can I find deals for flights from Dulles Intl to São Tomé that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to São Tomé flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to São Tomé?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to São Tomé.

  • Can I find deals for business class flights from Dulles Intl to São Tomé?

    Yes. Cheapflights offers flight deals from Dulles Intl to São Tomé by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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